Today I was able to do a quick couple of jobs, before it got too hot outside.
Pulled the tail lights, and replaced the seals. I was getting a lot of water inside the hatch area, but I'm not sure if its coming from the lights, the lower hatch glass trim, or what.
But I do know that water in the side channels of the hatch(just outside the hatch weatherstrip) was not able to flow out past the tails, and it would back up. So it might also have been coming past the hatch seal as well.
After taking them out, though, its clear that I needed new seals anyway.
New and old:
Cleaned the openings prior to reinstall:
Also, My spare tire well looked rusty as hell, because of the pooling water. But most of it was surface deposit. So I scrubbed it with mild sandpaper,
then with rubbing compound and all of the rust staining is gone. There are a few spots where rust bubbles were created, but it doesn't look like it went all the way through.